Question: What are the moon of Saturn which start with the letter titan
Paraphrase: What is Saturn's moon that starts with the titan letter?
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q1972 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'titan')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: Titan, Titan